NF ISO 10270. Corrosion of metals and alloys. Aqueous corrosion tests of zirconium alloys used in nuclear reactors

This international standard prescribes the determination of the mass gain and the superficial control of zirconium and zirconium alloy products after a corrosion test performed in water at 360 deg. C and in steam at 400 deg. C or more. A pressure of 10.3 MPa (1500 psi) is applied during the tests performed in vapor. This standard applies to welded and molded products, to powder metallurgy products and to filler metals for welding application. The method has been widely used in the development of new alloys and new techniques of thermal treatment and in the evaluation of welding techniques. (J.S.)